Nut-lock.



THOMAS L. LOELAND, OE KANSAS CITY, KANSAS.

NUT-LOCK.

To all whom it may concern:

Be it known that I, 'II-IoMAs L. LorLAND, a citizen of the UnitedStates, residing at Kansas City, in the county of "Wyandotte and Stateof Kansas, have invented a certain new and useful Improvement in Nut-Iiocks, of which the following is a specification.

My invention relates to improvements in nut locks.

The object of my invention is to provide a simple and efficient nutlock, which may be locked and unlocked without mutilation of any of theparts and which is not liable to be accidentally unlocked in use.

In the accompanying drawings which illust-rate my invention-Figure 1 isa longitudinal, central sectional view showing the bolt, nut and key inthe locked positions, the view being taken on the line a-b of Fig. 2.Fig. 2 is a cross section on the line o-cl of Fig. 1. Figs. 3, 4 and 5are respectively perspective views of the bolt, key and nut.

Similar characters of reference designate similar parts in the differentviews.

The threaded portion l of the bolt 2, is provided with a longitudinalperipheral groove 3, having an off-set 4 and a contracted port-ion 5.

The key 6 is preferably of spring material, such as spring steel, is ofan arcuate shape, and is adapted to be fitted in the groove 3, one edgeof the key having an ofiset portion 7, adapted to enter the off-setportion 4 of the groove 3, to prevent the endwise accidental withdrawalof the key from the groove. The outer or contracted end of the key 6 ispreferably provided with an eye 8, by means of which the key may beseized and withdrawn in the manner hereinafter described.

The nut 9, which is fitted to the threaded portion l of the bolt, isprovided through its threaded portion with a longitudinal groove l0,which is adapted to register with the groove 3, and is preferably of adepth such that the key 6 may be inserted endwise into the groove andupon the threads of the bolt.

In the operation of my invention, the nut 9 is turned to the positionwhich it is to occupy on the bolt and in a position in which the grooves10 and 3 will register. rI`he key 6 is then slipped over the threads ofthe contracted portion 5 of the groove 3, the key Specification ofLetters Patent.

Application led August 12, 1912.

Patented Deo; 17, 1912.

Serial No. 714,520.

being forced inwardly to a position in which the off-set portion 7 willpass wholly into the off-set portion 4 of the groove, upon which thecontracted outer end of the key will slip down into the contractedportion 5 of the groove. The arch or curve of the key 6 must be suchthat when the key is in the locking position just referred to, it willstill be disposed in the groove 10 of the uut to prevent the nut fromturning.

To remove the key, it is but necessary toinsert a nail or wire in theeye 8 and swing the outer end laterally so as to bring the outer end ofthe off-set portion 7 above the threads of the bolt, upon which the keymay then be easily removed by endwise withdrawal.

I do not limit my invention to the structure shown and described, asvarious modifications, within the scope of the appended claims, may bemade without departing from the spirit of my invention.

I-Iaving thus described my invention, what I claim and desire to secureby Letters Patent is 1. In a nut lock, a bolt having a longitudinalgroove with a lateral off-set, a nut having in its threaded portion alongitudinal groove adapted to register with the bolt groove, and aresilient arcuate key adapted to be disposed in said grooves for lockingthe bolt and nut together and having an off-set portion for entering theoE-set portion of the bolt groove for preventing the longitudinalwithdrawal of the key.

2. In a nut lock, a bolt having a longitudinal peripheral groove havingan off-set and contracted at its outer end, an arcuate resilient keyadapted to be mounted in said groove, and having an oE-set portionadapt-- ed to enter the o-set of said groove, and a nut fitted to thebolt and having through its threaded portion a longitudinal groove ofsufficient depth to permit the endwise insertion of the key into saidgrooves and between the threaded portion of the bolt and the nut.

3. In a nut lock, a bolt having a longitudinal peripheral groove with anoff-set and contracted at its outer end, an arcuate resilient key havingan off-set portion adapt-- ed to enter the off-set in the groove andprovided at its outer end with an eye and with a contracted portion forextending through the contracted portion of said groove, and

a nut tted to the bolt and having through In testimony vvhereoil I havesigned my its threaded portion a longitudinal groove name to thisspecification in presence of tvvo adapted to register with the groove inthe subscribing Witnesses.

bolt, the groove in the nut extending ont- THOMAS L. LOFLAND. side thethreads sufficiently to admit the end- Witnesses:

Wise insertion into said groove over the E. B. HOUSE,

threads of the bolt. WARREN D. HOUSE.

Copies of this patent may be obtained for ve c ents each, by addressingthe Commissioner of Patents, Washington, D. C.

